which timing variables need to match across the fabric using the default setting?

When configuring interoperable fabrics, which timing variables need to match across the
fabric using the default setting?

A.
B_B_TOV and R_B_TOV

B.
R_B_TOV and B_D_TOV

C.
R_A_TOV and B_B_TOV

D.
E_D_TOV and R_A_TOV